. . "Stephanie Louise Kwolek"@en . . "Stephanie Louise Kwolek (July 31, 1923 \u2013 June 18, 2014) was an American chemist, whose career at the DuPont company spanned over forty years. She is best known for inventing the first of a family of synthetic fibers of exceptional strength and stiffness: poly-paraphenylene terephthalamide\u2014better known as Kevlar. For her discovery, Kwolek was awarded the DuPont company's Lavoisier Medal for outstanding technical achievement."@en . . "1923Z"^^ . "2014-06-18Z"^^ . . . "2014Z"^^ . "1923-07-31Z"^^ . . . . . . "Kwolek, Stephanie Louise"@en . . . . "Americanorganic chemist" . "Stephanie Kwolek"@en .